Houghton, P. (2002). Nine descents of the spirit: Towards inner harmony. Jessica Kingsley.
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Tohutoru Kātū Chicago (17th ed.)
Houghton, Peter. Nine Descents of the Spirit: Towards Inner Harmony. London ; Philadelphia: Jessica Kingsley, 2002.
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Tohutoro MLA (9th ed.)
Houghton, Peter. Nine Descents of the Spirit: Towards Inner Harmony. Jessica Kingsley, 2002.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
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